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diff --git a/usr.sbin/bhyve/pci_passthru.h b/usr.sbin/bhyve/pci_passthru.h
--- a/usr.sbin/bhyve/pci_passthru.h
+++ b/usr.sbin/bhyve/pci_passthru.h
@@ -11,6 +11,14 @@
#include "pci_emul.h"
+struct passthru_mmio_mapping {
+ vm_paddr_t gpa; /* guest physical address */
+ void *gva; /* guest virtual address */
+ vm_paddr_t hpa; /* host physical address */
+ void *hva; /* guest virtual address */
+ vm_paddr_t len;
+};
+
struct passthru_softc;
typedef int (*cfgread_handler)(struct passthru_softc *sc,
@@ -24,6 +32,8 @@
int coff, int bytes, uint32_t *rv);
int passthru_cfgwrite_emulate(struct passthru_softc *sc, struct pci_devinst *pi,
int coff, int bytes, uint32_t val);
+struct passthru_mmio_mapping *passthru_get_mmio(struct passthru_softc *sc,
+ int num);
struct pcisel *passthru_get_sel(struct passthru_softc *sc);
int set_pcir_handler(struct passthru_softc *sc, int reg, int len,
cfgread_handler rhandler, cfgwrite_handler whandler);
diff --git a/usr.sbin/bhyve/pci_passthru.c b/usr.sbin/bhyve/pci_passthru.c
--- a/usr.sbin/bhyve/pci_passthru.c
+++ b/usr.sbin/bhyve/pci_passthru.c
@@ -78,6 +78,8 @@
#define MSIX_TABLE_COUNT(ctrl) (((ctrl) & PCIM_MSIXCTRL_TABLE_SIZE) + 1)
#define MSIX_CAPLEN 12
+#define PASSTHRU_MMIO_MAX 2
+
static int pcifd = -1;
struct passthru_softc {
@@ -94,6 +96,7 @@
} psc_msix;
struct pcisel psc_sel;
+ struct passthru_mmio_mapping psc_mmio_map[PASSTHRU_MMIO_MAX];
cfgread_handler psc_pcir_rhandler[PCI_REGMAX + 1];
cfgwrite_handler psc_pcir_whandler[PCI_REGMAX + 1];
};
@@ -660,6 +663,15 @@
return (error);
}
+struct passthru_mmio_mapping *
+passthru_get_mmio(struct passthru_softc *sc, int num)
+{
+ assert(sc != NULL);
+ assert(num < PASSTHRU_MMIO_MAX);
+
+ return (&sc->psc_mmio_map[num]);
+}
+
struct pcisel *
passthru_get_sel(struct passthru_softc *sc)
{

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